How to get private key in WebDart

Question

I'm using the module Web3dart for a mobile flutter application to interact with the ethereum blockchain. However i want to get the private key from a wallet. But there is only an attribute PrivateKey which returns a uint8Array.

Does someone know how I can get it as a hex so I can use it to import it into other wallets?

There is also a PrivateKeyInt which returns a bigInt.

Answer 1

You can use crypto.dart from web3dart package. Here is the sample code:

    import 'package:web3dart/crypto.dart';

    String revealPrivateKey () {
      var rng = Random.secure();
      EthePrivateKey priKey = EthPrivateKey.createRandom(rng);
      String s = bytesToHex(priKey.privateKey);
      return s; 
    }